synth: also try to open files (during synthesis) relative to current unit.

Fix #1190

1 files changed, 5 insertions, 0 deletions

diff --git a/src/synth/synth-insts.adb b/src/synth/synth-insts.adb
index f022ac71d..2013d4939 100644
--- a/src/synth/synth-insts.adb
+++ b/src/synth/synth-insts.adb
@@ -52,6 +52,7 @@ with Synth.Decls; use Synth.Decls;
 with Synth.Expr; use Synth.Expr;
 with Synth.Source; use Synth.Source;
 with Synth.Debugger;
+with Synth.Files_Operations;
 
 package body Synth.Insts is
    Root_Instance : Synth_Instance_Acc;
@@ -1464,6 +1465,10 @@ package body Synth.Insts is
          return;
       end if;
 
+      --  Save the current architecture, so that files can be open using a
+      --  path relative to the architecture filename.
+      Synth.Files_Operations.Set_Design_Unit (Arch);
+
       Synth_Dependencies (Root_Instance, Get_Design_Unit (Arch));
 
       Set_Instance_Module (Syn_Inst, Inst.M);